Watch List notes:

BRITISH COINS, Charles I, Obsidional Coinage, Silver Sixpence on lozenge shaped flan, 1646, Newark besieged, large crown over value, C to left, R to right, beaded border both sides, rev inscription and date, 2.96g (Hird 267-9; Brooker 1228; N 2642; S 3146). Struck on a large flan, very fine, toned and rare, the rarest denomination at Newark.

Estimate: £2000-2500